Sand prevention and dust removal device for fan

Abstract

The utility model discloses a fan sand prevention and dust removal device, belongs to the technical field of fan sand prevention and dust removal devices, and solves the problems that in the prior art, sand and dust are attached to a dustproof net at an air inlet and cannot be automatically cleaned, so that the air inlet amount is insufficient, the heat dissipation efficiency is greatly reduced, and equipment is overheated; and the operation of the wind driven generator is influenced or the maintenance cost is increased. The dust-proof device comprises an air inlet pipe, a dust-proof structure, a cleaning structure and a recovery structure, wherein the dust-proof structure is arranged on the air inlet pipe and is used for preventing dust from entering air sucked by a suction fan; the cleaning structure is used for automatically cleaning dust adsorbed on the dust-proof structure by using the entering air sucked by the suction fan; and the recovery structure is used for recovering the dust cleaned by the cleaning structure. The device is used for sand prevention and dust removal of the fan.

Description

TECHNICAL FIELD

[0001] The utility model relates to a fan sandproof dust removal device for fan sandproof dust removal. BACKGROUND

[0002] Wind turbine (referred to as fan) is the power machinery that converts wind energy into mechanical work. The working principle of wind turbine is that wind drives impeller (i.e. blade) to rotate, and then through transmission system (including gear box and other speed increasing mechanism) to increase speed to reach the speed of generator to drive generator to generate electricity, so as to effectively convert wind energy into electric energy.

[0003] Since the transmission system generates heat during operation, if the heat cannot be effectively dissipated, it will affect the efficiency and service life of the wind turbine. Therefore, the wind turbine usually includes a heat dissipation system to ensure that the temperature of the equipment during operation is within a reasonable range. The heat dissipation system draws in the air through the suction fan (such as axial fan and centrifugal fan) for cooling, and then cools the cabin through the cooled air. Although the heat dissipation effect is good, in the desert, gobi and other areas with large amount of sand and dust, the air entering the inlet will contain a large amount of sand and dust. Although a dust screen is used at the inlet to filter the incoming air, it is still easy to cause the following technical problems:

[0004] Sand and dust will adhere to the dust screen at the inlet and cannot be automatically cleaned, which will easily cause insufficient air intake, greatly reduce the heat dissipation efficiency, cause the equipment to overheat, affect the operation of the wind turbine or increase the maintenance cost. CONTENT OF THE UTILITY MODEL

[0005] The utility model aims at providing a fan sandproof dust removal device to solve the problem that sand and dust will adhere to the dust screen at the inlet and cannot be automatically cleaned in the prior art, which will easily cause insufficient air intake, greatly reduce the heat dissipation efficiency, cause the equipment to overheat, affect the operation of the wind turbine or increase the maintenance cost.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A fan sandproof dust removal device, comprising an air inlet pipe, a dust prevention structure arranged on the air inlet pipe to prevent dust from being drawn into the air inlet pipe by the suction fan, a cleaning structure for automatically cleaning the dust adsorbed on the dust prevention structure by the air drawn into the air inlet pipe by the suction fan, and a recycling structure for recycling the dust cleaned by the cleaning structure.

[0008] Further, the dust prevention structure comprises a mounting frame arranged on the air inlet pipe, and a filter cloth arranged on the mounting frame.

[0009] Further, along the length direction of the air inlet pipe, an installation opening for installing and removing the dustproof structure is arranged on the top side of the air inlet pipe, and clamping blocks are arranged on the air inlet pipe on both sides of the installation opening;

[0010] The installation frame is arranged with clamping grooves matched with the clamping blocks, and the installation frame is sealingly matched with the installation opening.

[0011] Further, an internally threaded column is arranged on the air inlet pipe on both sides of the installation opening;

[0012] An installation piece is arranged on the installation frame on the side of the internally threaded column, the installation piece is arranged with a sleeve hole for sleeving the internally threaded column, and a bolt is arranged on the internally threaded column to fix the installation frame on the air inlet pipe;

[0013] A sealing gasket sealingly matched with the installation opening is arranged on the top side of the installation frame.

[0014] Further, the cleaning structure comprises an installation plate arranged on the air inlet pipe, a plurality of beating holes and ventilation holes A arranged on the installation plate, and a beating structure arranged on the beating hole and forced to rotate or / and forced to displace to release pressure and beat the adhered dust on the dustproof structure.

[0015] Further, the beating structure comprises two reset springs arranged on the installation plate in the beating hole, a columnar T-shaped groove arranged on the two reset springs, a T-shaped block rotationally matched with the two columnar T-shaped grooves, and a beating plate connected with the two T-shaped blocks.

[0016] Further, the beating plate is arranged with ventilation holes B.

[0017] Further, along the air inlet direction of the air inlet pipe, a dust outlet is arranged on the bottom of the air inlet pipe at the rear end of the dustproof structure and the position corresponding to the dustproof structure.

[0018] The recycling structure comprises a recycling box arranged on the dust outlet, a partition plate arranged on the air inlet pipe and the recycling box corresponding to the installation opening, and an exhaust outlet arranged on the recycling box on both sides of the partition plate and used for exhausting dust and provided with a switch valve.

[0019] Further, the inner bottom of the recycling box is in a V-shaped structure.

[0020] Compared with the prior art, the advantages of the utility model lie in that:

[0021] The dustproof structure can effectively filter the dust in the entering air, prevents the dust from entering the cabin of the wind driven generator or cooling equipment, and the cleaning structure can automatically clean the dust adsorbed on the dustproof structure by the air sucked by the air suction machine, and the dust can be recycled through the recycling structure, so that the dustproof structure can continuously and effectively filter the dust, the air intake is sufficient, the heat dissipation efficiency is avoided to be reduced, the equipment overheating is avoided, the operation of the wind driven generator is affected, and the maintenance cost is increased;

[0022] The dustproof structure in the utility model can capture and block the dust particles by the filter cloth fixed on the mounting frame, and the cleaning structure is also convenient for cleaning, and the dustproof structure and the cleaning structure are not easy to be damaged during cleaning due to the flexible characteristics of the dustproof structure;

[0023] The mounting frame and the mounting port are sealingly matched, so that after the dustproof structure is installed, the air inlet pipe and the dustproof structure are not leaked, and the air inlet can be effectively filtered.

[0024] The mounting frame and the mounting port are sealingly matched, so that after the dustproof structure is installed, the air inlet pipe and the dustproof structure are not leaked, and the air inlet can be effectively filtered.

[0025] The cleaning structure in the utility model can effectively clean the dust attached to the filter cloth by the beating structure on the beating hole, so that the cleanliness and ventilation of the filter cloth are maintained.

[0026] The beating structure in the utility model is subjected to the force of the air inlet, so that the beating plate pulls the reset spring to move in the direction of the air inlet or / and the beating plate and the reset spring are rotationally matched, when the air inlet amount is small or no air inlet, the reset spring drives the beating plate to reset and shake, so as to beat the filter cloth or / and the air inlet drives the beating plate and the reset spring to rotate, the beating plate and the filter cloth are contacted or separated by the direction change of the beating plate, so as to beat the filter cloth, so as to automatically realize the periodic dust cleaning of the dustproof structure.

[0027] The utility model sets up the ventilation hole B on the beating plate, which is used for avoiding the influence of the beating plate on the air inlet amount.

[0028] Eight, the recycling structure in the utility model separates the recycling box into two areas through the partition plate, and the dust on the dustproof structure and the cleaning structure is recycled respectively, which not only can prevent the collected dust from entering the air inlet pipe again under the action of wind force, causing secondary pollution, but also can realize double filtration and dust recycling;

[0029] Nine, the utility model limits the V-shaped structure of the inner bottom of the recycling box, which is convenient for quickly and completely discharging the dust in the recycling box. BRIEF DESCRIPTION OF DRAWINGS

[0030] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiments, and it should be understood that the following drawings only show some embodiments of the utility model, and should not be regarded as the limitation to the scope, and for the ordinary skilled in the art, other related drawings can also be obtained according to these drawings without the creative labor.

[0031] Figure 1 It is the structural schematic diagram of the utility model;

[0032] Figure 2 It is Figure 1 partial sectional view;

[0033] Figure 3 It is the partial sectional view of the air inlet pipe in the utility model;

[0034] Figure 4 It is the structural schematic diagram of the dustproof structure and the cleaning structure in the utility model;

[0035] Figure 5 It is the structural schematic diagram of the dustproof structure and the cleaning structure in the utility model;

[0036] Figure 6 It is the partial structural schematic diagram of the dustproof structure in the utility model;

[0037] Figure 7 It is the structural schematic diagram of the cleaning structure in the utility model;

[0038] Figure 8 It is the structural schematic diagram of the beating structure in the utility model;

[0039] Figure 9 It is the structural schematic diagram of the recycling box provided with the separating plate in the utility model;

[0040] In the figure: 1 - air inlet pipe, 2 - dustproof structure, 3 - cleaning structure, 4 - recycling structure, 5 - mounting frame, 6 - filter cloth, 7 - mounting port, 8 - clamping block, 9 - clamping groove, 10 - internally threaded column, 11 - mounting piece, 12 - sleeve hole, 13 - bolt, 14 - sealing gasket, 15 - mounting plate, 16 - beating hole, 17 - ventilation hole A, 18 - beating structure, 19 - return spring, 20 - column-shaped T-shaped groove, 21 - T-shaped block, 22 - beating plate, 23 - ventilation hole B, 24 - sand dust outlet, 25 - recycling box, 26 - partition plate, 27 - discharge port. DETAILED DESCRIPTION

[0041] To make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0042] It should be noted that: similar reference numerals and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0043] In the description of the present application, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the product of the present application is used, which is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0044] In addition, if the terms "first", "second", "third" and the like appear, they are only used for differentiation in description, and cannot be understood as indicating or implying relative importance.

[0045] In addition, if the terms "horizontal", "vertical", "overhanging" and the like appear, they do not mean that the parts must be absolutely horizontal or overhanging, but can be slightly inclined. For example, "horizontal" only means that its direction is relatively more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0046] In the description of the utility model, still need to explain, unless another explicit provision and limitation, if appear term " set up " " install " " link " " connection " and so on should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through the intermediate medium, can be two elements inside the communication。For ordinary skilled in the art, can understand the specific meaning of the above terms in the utility model according to specific circumstances.

[0047] It should be noted that the features in the embodiments of the utility model can be combined with each other without conflict.

[0048] Embodiment 1

[0049] To solve the problem that the dust in the prior art can be attached to the dust screen of the air inlet and cannot be automatically cleaned, thereby easily causing insufficient air intake, greatly reducing the heat dissipation efficiency, causing the equipment to overheat, affecting the operation of the wind turbine or increasing the maintenance cost, etc. Figures 1-9 As shown in the figure, a fan sand prevention and dust removal device is provided, which comprises an air inlet pipe 1, a dust prevention structure 2 arranged on the air inlet pipe 1 for preventing dust from being drawn into the air inlet by the air suction machine, a cleaning structure 3 for automatically cleaning the dust adsorbed on the dust prevention structure by the air drawn into the air suction machine, and a recycling structure 4 for recycling the dust cleaned by the cleaning structure 3.

[0050] In practice, in desert or gobi areas, when the wind turbine draws air into the air inlet through the air suction machine, the dust in the air is filtered by the dust prevention structure, and the dust adsorbed on the dust prevention structure by the air drawn into the air suction machine is automatically cleaned by the cleaning structure, and the automatically cleaned dust is recycled by the recycling structure 4, and the filtered air is cooled by the cooling equipment and then delivered to the cabin. This embodiment can effectively filter the dust in the air entering the air inlet by arranging the dust prevention structure on the air inlet pipe connected to the air suction machine, prevent the dust from entering the cabin of the wind turbine or the cooling equipment, etc., and the cleaning structure automatically removes the dust adsorbed on the dust prevention structure by the air drawn into the air suction machine, and the recycling structure recycles the dust, ensuring that the dust prevention structure can continuously and effectively filter the dust, so that the air intake is sufficient, avoiding reducing the heat dissipation efficiency, causing the equipment to overheat, affecting the operation of the wind turbine or increasing the maintenance cost, etc.

[0051] Embodiment 2

[0052] On the basis of the embodiment 1, the dustproof structure 2 comprises a mounting frame 5 arranged on the air inlet pipe 1, and a filter cloth 6 arranged on the mounting frame 5. The thickness and the number of layers of the filter cloth 6 can be selected according to the practical needs. The filter cloth 6 can be adhered to the mounting frame, or clamped or fixed to the mounting frame in other ways. The filter cloth 6 can be a non-woven fabric. The dustproof structure in this embodiment can capture and block dust particles through the filter cloth fixed on the mounting frame. Meanwhile, it is also beneficial for the cleaning structure to be cleaned. Because of the flexible characteristics, the dustproof structure and the cleaning structure can be prevented from being damaged during cleaning.

[0053] Embodiment 3

[0054] On the basis of the embodiment 2, along the length direction of the air inlet pipe 1, a mounting port 7 for mounting and removing the dustproof structure 2 is arranged on one side of the top of the air inlet pipe 1, and clamping blocks 8 are arranged on the air inlet pipe 1 on both sides of the mounting port 7. The mounting frame 5 is provided with clamping grooves 9 matched with the clamping blocks 8, and the mounting frame 5 is sealingly matched with the mounting port 7.

[0055] In practice, the dustproof structure is inserted into the air inlet pipe from the mounting port, and the clamping grooves 9 on the mounting frame 5 are matched with the clamping blocks 8. In this embodiment, the mounting port is arranged on the top of the air inlet pipe, and the clamping blocks arranged on the air inlet pipe are matched with the clamping grooves arranged on the mounting frame. This not only facilitates the dustproof structure to be easily mounted on the air inlet pipe, but also enables the dustproof structure to be quickly removed when maintenance or replacement is required, thereby improving the convenience of maintenance. The sealing matching of the mounting frame and the mounting port can ensure that there is no leakage between the air inlet pipe and the dustproof structure after the dustproof structure is mounted, and the air inlet can be effectively filtered.

[0056] Embodiment 4

[0057] On the basis of the embodiment 3, the air inlet pipe 1 on both sides of the mounting port 7 is provided with an internally threaded column 10. An installation piece 11 is arranged on one side of the mounting frame 5 located on one side of the internally threaded column 10. The installation piece 11 is provided with a sleeve hole 12 in which the internally threaded column 10 is sleeved. A bolt 13 is arranged on the internally threaded column 10 to fix the mounting frame 5 on the air inlet pipe 1. A sealing gasket 14 (which can be a rubber gasket) is arranged on one side of the top of the mounting frame 5 and sealingly matched with the mounting port 7. The bottom of the mounting frame can also be provided with a rubber gasket matched with the air inlet pipe, which can be selected according to the actual needs.

[0058] In practice, the dustproof structure is inserted into the air inlet pipe from the installation opening, and the clamping groove 9 on the installation frame 5 is matched with the clamping block 8 at the same time, the sealing gasket 14 is matched with the installation opening and the installation frame, the sleeve hole 12 on the installation piece is sleeved on the internal threaded column 10, and the dustproof structure is fixed on the air inlet pipe through the threaded cooperation of the bolt 13 and the internal threaded column 10. In this embodiment, the installation piece is arranged on the installation frame, the sleeve hole on the installation piece is sleeved on the internal threaded column, and the dustproof structure is fixed on the air inlet pipe through the bolt. Not only is it convenient to fix and install the dustproof structure on the air inlet pipe, but also the connection at the installation opening is easy to strengthen. By arranging the sealing gasket on the installation frame and matching it with the installation opening, the sealing effect can be effectively achieved.

[0059] Embodiment 5

[0060] On the basis of embodiment 4, the cleaning structure 3 includes an installation plate 15 arranged on the air inlet pipe 1, a plurality of beating holes 16 and ventilation holes A 17 arranged on the installation plate 15, and a beating structure 18 arranged on the beating hole 16 and forced to rotate or / and forced to displace, release pressure reset, and beat the dust attached to the dustproof structure 2. The cleaning structure beats the filter cloth by arranging the beating structure on the beating hole and forced to rotate or / and forced to displace, release pressure reset, which can effectively clean the dust attached to the filter cloth and maintain the cleanliness and ventilation of the filter cloth. The beating hole 16 and the ventilation hole A 17 can ensure the air inlet amount of the cleaning structure, and can also play a secondary dustproof role in cooperation with the dustproof structure.

[0061] Embodiment 6

[0062] On the basis of embodiment 5, the beating structure 18 includes two reset springs 19 arranged on the installation plate 15 in the beating hole 16, a column-shaped T-shaped groove 20 arranged on the two reset springs 19, a T-shaped block 21 rotatably matched with the two column-shaped T-shaped grooves 20, and a beating plate 22 connected with the two T-shaped blocks 21. The shape and size of the beating plate are selected according to actual needs to achieve the function of beating the filter cloth.

[0063] In practice, the air entering through the dustproof structure acts on the beating structure of the cleaning structure. The beating structure is forced to move by the force of the incoming air, and the beating plate is forced to pull the reset spring to move in the direction of the incoming air or / and the beating plate and the reset spring are rotatably matched. When the air inlet amount is small or there is no air inlet, the reset spring drives the beating plate to reset and shake, which can beat the filter cloth or / and the incoming air blows the beating plate and the reset spring to rotate. The beating plate is contacted or separated from the filter cloth in the way of beating the filter cloth to automatically realize the periodic dust cleaning of the dustproof structure.

[0064] Embodiment 7

[0065] On the basis of embodiment 6, the beating plate 22 is provided with a ventilation hole B23. The ventilation hole B is arranged on the beating plate to avoid affecting the air inlet

[0066] Embodiment 8

[0067] On the basis of embodiment 7, the bottom of the air inlet pipe 1 is provided with a dust outlet 24 at the rear end of the dustproof structure 2 and the position corresponding to the dustproof structure 2 along the air inlet direction of the air inlet pipe 1; the recovery structure 4 comprises a recovery box 25 arranged on the dust outlet 24, a corresponding mounting port 7, a partition plate 26 arranged on the recovery box 25 and the air inlet pipe 1, and a discharge port 27 arranged on the recovery box 25 on both sides of the partition plate 26 for discharging dust and provided with a switch valve. The recovery structure divides the recovery box into two areas through the partition plate to recover the dust on the dustproof structure and the cleaning structure respectively, and controls whether to discharge the dust through the switch valve arranged on the discharge port. The switch valve is existing and is not described in detail here. It not only can prevent the collected dust from entering the air inlet pipe again under the action of wind force, causing secondary pollution, but also can realize double filtration and dust recovery. The inner bottom of the recovery box 25 is in a V-shaped structure to facilitate quick and clean discharge of the dust in the recovery box. In practice, in order to prevent the dust from flying out of the recovery box due to the influence of air inlet, a blocking structure can be arranged on the top of the recovery box, such as a blocking structure that can tilt and shake under the action of vibration generated by the action of the device. It can include a rotating shaft and a rotating plate that rotates in cooperation with the rotating shaft, and the rotating shaft is located at the middle position of the rotating plate.

Claims

1. A sand and dust removing device for a fan, characterized by: The application relates to a dustproof structure for an air inlet pipe (1), a cleaning structure (3) for automatically cleaning dust adsorbed on the dustproof structure by air sucked by an air suction machine, and a recycling structure (4) for recycling dust cleaned by the cleaning structure (3).

2. The sand and dust removal device for a fan according to claim 1, characterized in that: The dustproof structure (2) comprises an installation frame (5) arranged on the air inlet pipe (1) and a filter cloth (6) arranged on the installation frame (5).

3. The sand and dust removal device for a fan according to claim 2, characterized in that: Along the length direction of the air inlet pipe (1), an installation opening (7) for installing and removing the dustproof structure (2) is arranged on the top side of the air inlet pipe (1), and clamping blocks (8) are arranged on the air inlet pipe (1) on the two sides of the installation opening (7). The installation frame (5) is provided with clamping grooves (9) matched with the clamping blocks (8), and the installation frame (5) is sealingly matched with the installation opening (7).

4. The sand and dust removal device for a fan according to claim 3, characterized in that: The air inlet pipe (1) on the two sides of the installation opening (7) is provided with internally threaded columns (10). An installation piece (11) is arranged on the installation frame (5) on the side of the internally threaded column (10), the installation piece (11) is provided with a sleeve hole (12) sleeved on the internally threaded column (10), and a bolt (13) is arranged on the internally threaded column (10) to fix the installation frame (5) on the air inlet pipe (1). A sealing gasket (14) sealingly matched with the installation opening (7) is arranged on the top side of the installation frame (5).

5. The sand and dust removal device for a fan according to any one of claims 2-4, characterized in that: The cleaning structure (3) comprises an installation plate (15) arranged on the air inlet pipe (1), a plurality of beating holes (16) and ventilation holes A (17) arranged on the installation plate (15), and a beating structure (18) arranged on the beating hole (16) and forced to rotate or / and forced to displace, release pressure and reset to beat dust attached on the dustproof structure (2).

6. The sand and dust removal device for a fan according to claim 5, characterized in that: The beating structure (18) comprises two reset springs (19) arranged on the installation plate (15) opposite to the beating hole (16), columnar T-shaped grooves (20) arranged on the two reset springs (19), T-shaped blocks (21) rotationally matched with the two columnar T-shaped grooves (20), and a beating plate (22) connected with the two T-shaped blocks (21).

7. The sand and dust removal device for a fan according to claim 6, characterized in that: The beating plate (22) is provided with ventilation holes B (23).

8. The sand and dust removal device for a fan according to claim 7, characterized in that: Along the air inlet direction of the air inlet pipe (1), a dust outlet (24) is arranged on the bottom of the air inlet pipe (1) at the rear end of the dustproof structure (2) and the position corresponding to the dustproof structure (2). The recycling structure (4) comprises a recycling box (25) arranged on the dust outlet (24), a partition plate (26) arranged on the air inlet pipe (1) and the recycling box (25) corresponding to the installation opening (7), and a discharge outlet (27) with a switch valve arranged on the recycling box (25) on the two sides of the partition plate (26) and used for discharging dust.

9. The sand and dust removal device for a fan according to claim 8, characterized in that: The inner bottom of the recycling box (25) is in V-shaped structure.

Images